A class encapsulating an extended precision real value. More...

#include <e32math.h>

Public Types
enum	TRealXOrder { ELessThan =1 , EEqual =2 , EGreaterThan =4 , EUnordered =8 }

Public Member Functions
IMPORT_C	TRealX ()
	Constructs a default extended precision object.

IMPORT_C	TRealX (TInt aInt)
	Constructs an extended precision object from a signed integer value.

IMPORT_C	TRealX (TUint aInt)
	Constructs an extended precision object from an unsigned integer value.

IMPORT_C	TRealX (TUint aExp, TUint aMantHi, TUint aMantLo)
	Constructs an extended precision object from an explicit exponent and a 64 bit mantissa.

IMPORT_C	TRealX (const TInt64 &aInt)
	Constructs an extended precision object from a 64 bit integer.

IMPORT_C	TRealX (TReal32 aReal) __SOFTFP
	Constructs an extended precision object from a single precision floating point number.

IMPORT_C	TRealX (TReal64 aReal) __SOFTFP
	Constructs an extended precision object from a double precision floating point number.

IMPORT_C TRealX &	operator= (TInt aInt)
	Assigns the specified signed integer value to this extended precision object.

IMPORT_C TRealX &	operator= (TUint aInt)
	Assigns the specified unsigned integer value to this extended precision object.

IMPORT_C TRealX &	operator= (const TInt64 &aInt)
	Assigns the specified 64 bit integer value to this extended precision object.

IMPORT_C TRealX &	operator= (TReal32 aReal) __SOFTFP
	Assigns the specified single precision floating point number to this extended precision object.

IMPORT_C TRealX &	operator= (TReal64 aReal) __SOFTFP
	Assigns the specified double precision floating point number to this extended precision object.

IMPORT_C TInt	Set (TInt aInt)
	Gives this extended precision object a new value taken from a signed integer.

IMPORT_C TInt	Set (TUint aInt)
	Gives this extended precision object a new value taken from an unsigned integer.

IMPORT_C TInt	Set (const TInt64 &aInt)
	Gives this extended precision object a new value taken from a 64 bit integer.

IMPORT_C TInt	Set (TReal32 aReal) __SOFTFP
	Gives this extended precision object a new value taken from a single precision floating point number.

IMPORT_C TInt	Set (TReal64 aReal) __SOFTFP
	Gives this extended precision object a new value taken from a double precision floating point number.

IMPORT_C	operator TInt () const
	Gets the extended precision value as a signed integer value.

IMPORT_C	operator TUint () const
	Returns the extended precision value as an unsigned signed integer value.

IMPORT_C	operator TInt64 () const
	Returns the extended precision value as a 64 bit integer value.

IMPORT_C	operator TReal32 () const __SOFTFP
	Returns the extended precision value as a single precision floating point value.

IMPORT_C	operator TReal64 () const __SOFTFP
	Returns the extended precision value as a double precision floating point value.

IMPORT_C TInt	GetTReal (TReal32 &aVal) const
	Extracts the extended precision value as a single precision floating point value.

IMPORT_C TInt	GetTReal (TReal64 &aVal) const
	Extracts the extended precision value as a double precision floating point value.

IMPORT_C void	SetZero (TBool aNegative=EFalse)
	Sets the value of this extended precision object to zero.

IMPORT_C void	SetNaN ()
	Sets the value of this extended precision object to 'not a number'.

IMPORT_C void	SetInfinite (TBool aNegative)
	Sets the value of this extended precision object to infinity.

IMPORT_C TBool	IsZero () const
	Determines whether the extended precision value is zero.

IMPORT_C TBool	IsNaN () const
	Determines whether the extended precision value is 'not a number'.

IMPORT_C TBool	IsInfinite () const
	Determines whether the extended precision value has a finite value.

IMPORT_C TBool	IsFinite () const
	Determines whether the extended precision value has a finite value.

IMPORT_C const TRealX &	operator+= (const TRealX &aVal)
	Adds an extended precision value to this extended precision number.

IMPORT_C const TRealX &	operator-= (const TRealX &aVal)
	Subtracts an extended precision value from this extended precision number.

IMPORT_C const TRealX &	operator*= (const TRealX &aVal)
	Multiplies this extended precision number by an extended precision value.

IMPORT_C const TRealX &	operator/= (const TRealX &aVal)
	Divides this extended precision number by an extended precision value.

IMPORT_C const TRealX &	operator%= (const TRealX &aVal)
	Modulo-divides this extended precision number by an extended precision value.

IMPORT_C TInt	AddEq (const TRealX &aVal)
	Adds an extended precision value to this extended precision number.

IMPORT_C TInt	SubEq (const TRealX &aVal)
	Subtracts an extended precision value from this extended precision number.

IMPORT_C TInt	MultEq (const TRealX &aVal)
	Multiplies this extended precision number by an extended precision value.

IMPORT_C TInt	DivEq (const TRealX &aVal)
	Divides this extended precision number by an extended precision value.

IMPORT_C TInt	ModEq (const TRealX &aVal)
	Modulo-divides this extended precision number by an extended precision value.

IMPORT_C TRealX	operator+ () const
	Returns this extended precision number unchanged.

IMPORT_C TRealX	operator- () const
	Negates this extended precision number.

IMPORT_C TRealX &	operator++ ()
	Increments this extended precision number by one, and then returns a reference to it.

IMPORT_C TRealX	operator++ (TInt)
	Returns this extended precision number before incrementing it by one.

IMPORT_C TRealX &	operator-- ()
	Decrements this extended precision number by one, and then returns a reference to it.

IMPORT_C TRealX	operator-- (TInt)
	Returns this extended precision number before decrementing it by one.

IMPORT_C TRealX	operator+ (const TRealX &aVal) const
	Adds an extended precision value to this extended precision number.

IMPORT_C TRealX	operator- (const TRealX &aVal) const
	Subtracts an extended precision value from this extended precision number.

IMPORT_C TRealX	operator* (const TRealX &aVal) const
	Multiplies this extended precision number by an extended precision value.

IMPORT_C TRealX	operator/ (const TRealX &aVal) const
	Divides this extended precision number by an extended precision value.

IMPORT_C TRealX	operator% (const TRealX &aVal) const
	Modulo-divides this extended precision number by an extended precision value.

IMPORT_C TInt	Add (TRealX &aResult, const TRealX &aVal) const
	Adds an extended precision value to this extended precision number.

IMPORT_C TInt	Sub (TRealX &aResult, const TRealX &aVal) const
	Subtracts an extended precision value from this extended precision number.

IMPORT_C TInt	Mult (TRealX &aResult, const TRealX &aVal) const
	Multiplies this extended precision number by an extended precision value.

IMPORT_C TInt	Div (TRealX &aResult, const TRealX &aVal) const
	Divides this extended precision number by an extended precision value.

IMPORT_C TInt	Mod (TRealX &aResult, const TRealX &aVal) const
	Modulo-divides this extended precision number by an extended precision value.

IMPORT_C TRealXOrder	Compare (const TRealX &aVal) const

TBool	operator== (const TRealX &aVal) const
	Compares this extended precision number for equality with another.

TBool	operator!= (const TRealX &aVal) const
	Compares this extended precision number for in-equality with another.

TBool	operator>= (const TRealX &aVal) const
	Compares this extended precision number for being greater than or equal to another.

TBool	operator<= (const TRealX &aVal) const
	Compares this extended precision number for being less than or equal to another.

TBool	operator> (const TRealX &aVal) const
	Compares this extended precision number for being greater than another.

TBool	operator< (const TRealX &aVal) const
	Compares this extended precision number for being less than another.

Public Attributes
TUint32	iMantLo
	The mantissa.

TUint32	iMantHi

TInt8	iSign
	The sign: 0 for +, 1 for -.

TUint8	iFlag
	Flags: 0 for exact, 1 for rounded down, 2 for rounded up.

TUint16	iExp
	Exponent: biased by 32767, iExp=0 => zero, +65535 => infinity or NaN.

Detailed Description

A class encapsulating an extended precision real value.

This class provides 64 bit precision and a dynamic range of approximately 1E-9863 to 1E+9863. All member functions are optimized for speed.

API status: Published to all clients. Released API.

Definition at line 389 of file e32math.h.

Member Enumeration Documentation

◆ TRealXOrder

enum TRealX::TRealXOrder

Enumerator
ELessThan
EEqual
EGreaterThan
EUnordered

Definition at line 403 of file e32math.h.

Constructor & Destructor Documentation

◆ TRealX() [1/7]

IMPORT_C TRealX::TRealX ( )

Constructs a default extended precision object.

This sets the value to zero.

(generated from Symbian Developer Library)

◆ TRealX() [2/7]

IMPORT_C TRealX::TRealX ( TInt aInt )

Constructs an extended precision object from a signed integer value.

(generated from Symbian Developer Library)

◆ TRealX() [3/7]

IMPORT_C TRealX::TRealX ( TUint aInt )

Constructs an extended precision object from an unsigned integer value.

(generated from Symbian Developer Library)

◆ TRealX() [4/7]

IMPORT_C TRealX::TRealX	(	TUint	aExp,
		TUint	aMantHi,
		TUint	aMantLo
	)

Constructs an extended precision object from an explicit exponent and a 64 bit mantissa.

Parameters

aMantHi	The high order 32 bits of the 64 bit mantissa
aMantLo	The low order 32 bits of the 64 bit mantissa

(generated from Symbian Developer Library)

◆ TRealX() [5/7]

IMPORT_C TRealX::TRealX ( const TInt64 & aInt )

Constructs an extended precision object from a 64 bit integer.

(generated from Symbian Developer Library)

◆ TRealX() [6/7]

IMPORT_C TRealX::TRealX ( TReal32 aReal )

Constructs an extended precision object from a single precision floating point number.

Parameters

aReal The single precision floating point value.

(generated from Symbian Developer Library)

◆ TRealX() [7/7]

IMPORT_C TRealX::TRealX ( TReal64 aReal )

Constructs an extended precision object from a double precision floating point number.

Parameters

aReal The double precision floating point value.

(generated from Symbian Developer Library)

Member Function Documentation

◆ Add()

IMPORT_C TInt TRealX::Add	(	TRealX &	aResult,
		const TRealX &	aVal
	)		const

Adds an extended precision value to this extended precision number.

Parameters

aResult	On return, a reference to an extended precision object containing the result of the operation.
aVal	The extended precision value to be added.

(generated from Symbian Developer Library)

◆ AddEq()

IMPORT_C TInt TRealX::AddEq ( const TRealX & aVal )

Adds an extended precision value to this extended precision number.

Parameters

aVal	The extended precision value to be added.

(generated from Symbian Developer Library)

◆ Compare()

IMPORT_C TRealXOrder TRealX::Compare ( const TRealX & aVal ) const

◆ Div()

IMPORT_C TInt TRealX::Div	(	TRealX &	aResult,
		const TRealX &	aVal
	)		const

Divides this extended precision number by an extended precision value.

Parameters

aResult	On return, a reference to an extended precision object containing the result of the operation.
aVal	The extended precision value to be used as the divisor.

(generated from Symbian Developer Library)

◆ DivEq()

IMPORT_C TInt TRealX::DivEq ( const TRealX & aVal )

Divides this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the divisor.

(generated from Symbian Developer Library)

◆ GetTReal() [1/2]

IMPORT_C TInt TRealX::GetTReal ( TReal32 & aVal ) const

Extracts the extended precision value as a single precision floating point value.

Parameters

aVal	A reference to a single precision object which contains the result of the operation.

(generated from Symbian Developer Library)

◆ GetTReal() [2/2]

IMPORT_C TInt TRealX::GetTReal ( TReal64 & aVal ) const

Extracts the extended precision value as a double precision floating point value.

Parameters

aVal	A reference to a double precision object which contains the result of the operation.

(generated from Symbian Developer Library)

◆ IsFinite()

IMPORT_C TBool TRealX::IsFinite ( ) const

Determines whether the extended precision value has a finite value.

(generated from Symbian Developer Library)

◆ IsInfinite()

IMPORT_C TBool TRealX::IsInfinite ( ) const

Determines whether the extended precision value has a finite value.

(generated from Symbian Developer Library)

◆ IsNaN()

IMPORT_C TBool TRealX::IsNaN ( ) const

Determines whether the extended precision value is 'not a number'.

(generated from Symbian Developer Library)

◆ IsZero()

IMPORT_C TBool TRealX::IsZero ( ) const

Determines whether the extended precision value is zero.

(generated from Symbian Developer Library)

◆ Mod()

IMPORT_C TInt TRealX::Mod	(	TRealX &	aResult,
		const TRealX &	aVal
	)		const

Modulo-divides this extended precision number by an extended precision value.

Parameters

aResult	On return, a reference to an extended precision object containing the result of the operation.
aVal	The extended precision value to be used as the divisor.

(generated from Symbian Developer Library)

◆ ModEq()

IMPORT_C TInt TRealX::ModEq ( const TRealX & aVal )

Modulo-divides this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the divisor.

(generated from Symbian Developer Library)

◆ Mult()

IMPORT_C TInt TRealX::Mult	(	TRealX &	aResult,
		const TRealX &	aVal
	)		const

Multiplies this extended precision number by an extended precision value.

Parameters

aResult	On return, a reference to an extended precision object containing the result of the operation.
aVal	The extended precision value to be used as the multiplier.

(generated from Symbian Developer Library)

◆ MultEq()

IMPORT_C TInt TRealX::MultEq ( const TRealX & aVal )

Multiplies this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the multiplier.

(generated from Symbian Developer Library)

◆ operator TInt()

IMPORT_C TRealX::operator TInt ( ) const

Gets the extended precision value as a signed integer value.

The operator returns:

zero , if the extended precision value is not a number
0x7FFFFFFF, if the value is positive and too big to fit into a TInt.
0x80000000, if the value is negative and too big to fit into a TInt.

(generated from Symbian Developer Library)

◆ operator TInt64()

IMPORT_C TRealX::operator TInt64 ( ) const

Returns the extended precision value as a 64 bit integer value.

The operator returns:

zero, if the extended precision value is not a number
0x7FFFFFFF FFFFFFFF, if the value is positive and too big to fit into a TInt64
0x80000000 00000000, if the value is negative and too big to fit into a TInt.

(generated from Symbian Developer Library)

◆ operator TReal32()

IMPORT_C TRealX::operator TReal32 ( ) const

Returns the extended precision value as a single precision floating point value.

(generated from Symbian Developer Library)

◆ operator TReal64()

IMPORT_C TRealX::operator TReal64 ( ) const

Returns the extended precision value as a double precision floating point value.

(generated from Symbian Developer Library)

◆ operator TUint()

IMPORT_C TRealX::operator TUint ( ) const

Returns the extended precision value as an unsigned signed integer value.

The operator returns:

zero, if the extended precision value is not a number
0xFFFFFFFF, if the value is positive and too big to fit into a TUint.
zero, if the value is negative and too big to fit into a TUint.

(generated from Symbian Developer Library)

◆ operator!=()

TBool TRealX::operator!= ( const TRealX & aVal ) const

inline

Compares this extended precision number for in-equality with another.

Parameters

aVal	A reference to the extended precision value to be compared.

(generated from Symbian Developer Library)

◆ operator%()

IMPORT_C TRealX TRealX::operator% ( const TRealX & aVal ) const

Modulo-divides this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the divisor.

Panic condition: MATHX KErrTotalLossOfPrecision if precision is lost.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator%=()

IMPORT_C const TRealX & TRealX::operator%= ( const TRealX & aVal )

Modulo-divides this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the divisor.

Panic condition: MATHX KErrTotalLossOfPrecision panic if precision is lost.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator*()

IMPORT_C TRealX TRealX::operator* ( const TRealX & aVal ) const

Multiplies this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the multiplier.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator*=()

IMPORT_C const TRealX & TRealX::operator*= ( const TRealX & aVal )

Multiplies this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be subtracted.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator+() [1/2]

IMPORT_C TRealX TRealX::operator+ ( ) const

Returns this extended precision number unchanged.

Note that this may also be referred to as a unary plus operator.

(generated from Symbian Developer Library)

◆ operator+() [2/2]

IMPORT_C TRealX TRealX::operator+ ( const TRealX & aVal ) const

Adds an extended precision value to this extended precision number.

Parameters

aVal	The extended precision value to be added.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator++() [1/2]

IMPORT_C TRealX & TRealX::operator++ ( )

Increments this extended precision number by one, and then returns a reference to it.

This is also referred to as a prefix operator.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator++() [2/2]

IMPORT_C TRealX TRealX::operator++ ( TInt )

Returns this extended precision number before incrementing it by one.

This is also referred to as a postfix operator.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator+=()

IMPORT_C const TRealX & TRealX::operator+= ( const TRealX & aVal )

Adds an extended precision value to this extended precision number.

Parameters

aVal	The extended precision value to be added.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator-() [1/2]

IMPORT_C TRealX TRealX::operator- ( ) const

Negates this extended precision number.

This may also be referred to as a unary minus operator.

(generated from Symbian Developer Library)

◆ operator-() [2/2]

IMPORT_C TRealX TRealX::operator- ( const TRealX & aVal ) const

Subtracts an extended precision value from this extended precision number.

Parameters

aVal	The extended precision value to be subtracted.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator--() [1/2]

IMPORT_C TRealX & TRealX::operator-- ( )

Decrements this extended precision number by one, and then returns a reference to it.

This is also referred to as a prefix operator.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator--() [2/2]

IMPORT_C TRealX TRealX::operator-- ( TInt )

Returns this extended precision number before decrementing it by one.

This is also referred to as a postfix operator.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator-=()

IMPORT_C const TRealX & TRealX::operator-= ( const TRealX & aVal )

Subtracts an extended precision value from this extended precision number.

Parameters

aVal	The extended precision value to be subtracted.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

(generated from Symbian Developer Library)

◆ operator/()

IMPORT_C TRealX TRealX::operator/ ( const TRealX & aVal ) const

Divides this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the divisor.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

Panic condition: MATHX KErrDivideByZero if the divisor is zero.

(generated from Symbian Developer Library)

◆ operator/=()

IMPORT_C const TRealX & TRealX::operator/= ( const TRealX & aVal )

Divides this extended precision number by an extended precision value.

Parameters

aVal	The extended precision value to be used as the divisor.

Panic condition: MATHX KErrOverflow if the operation results in overflow.

Panic condition: MATHX KErrUnderflow if the operation results in underflow.

Panic condition: MATHX KErrDivideByZero if the divisor is zero.

(generated from Symbian Developer Library)

◆ operator<()

TBool TRealX::operator< ( const TRealX & aVal ) const

inline

Compares this extended precision number for being less than another.

Parameters

aVal	A reference to the extended precision value to be compared.

(generated from Symbian Developer Library)

◆ operator<=()

TBool TRealX::operator<= ( const TRealX & aVal ) const

inline

Compares this extended precision number for being less than or equal to another.

Parameters

aVal	A reference to the extended precision value to be compared.

(generated from Symbian Developer Library)

◆ operator=() [1/5]

IMPORT_C TRealX & TRealX::operator= ( const TInt64 & aInt )

Assigns the specified 64 bit integer value to this extended precision object.

(generated from Symbian Developer Library)

◆ operator=() [2/5]

IMPORT_C TRealX & TRealX::operator= ( TInt aInt )

Assigns the specified signed integer value to this extended precision object.

(generated from Symbian Developer Library)

◆ operator=() [3/5]

IMPORT_C TRealX & TRealX::operator= ( TReal32 aReal )

Assigns the specified single precision floating point number to this extended precision object.

Parameters

aReal The single precision floating point value.

(generated from Symbian Developer Library)

◆ operator=() [4/5]

IMPORT_C TRealX & TRealX::operator= ( TReal64 aReal )

Assigns the specified double precision floating point number to this extended precision object.

Parameters

aReal The double precision floating point value.

(generated from Symbian Developer Library)

◆ operator=() [5/5]

IMPORT_C TRealX & TRealX::operator= ( TUint aInt )

Assigns the specified unsigned integer value to this extended precision object.

(generated from Symbian Developer Library)

◆ operator==()

TBool TRealX::operator== ( const TRealX & aVal ) const

inline

Compares this extended precision number for equality with another.

Parameters

aVal	A reference to the extended precision value to be compared.

(generated from Symbian Developer Library)

◆ operator>()

TBool TRealX::operator> ( const TRealX & aVal ) const

inline

Compares this extended precision number for being greater than another.

Parameters

aVal	A reference to the extended precision value to be compared.

(generated from Symbian Developer Library)

◆ operator>=()

TBool TRealX::operator>= ( const TRealX & aVal ) const

inline

Compares this extended precision number for being greater than or equal to another.

Parameters

aVal	A reference to the extended precision value to be compared.

(generated from Symbian Developer Library)

◆ Set() [1/5]

IMPORT_C TInt TRealX::Set ( const TInt64 & aInt )

Gives this extended precision object a new value taken from a 64 bit integer.

(generated from Symbian Developer Library)

◆ Set() [2/5]

IMPORT_C TInt TRealX::Set ( TInt aInt )

Gives this extended precision object a new value taken from a signed integer.

(generated from Symbian Developer Library)

◆ Set() [3/5]

IMPORT_C TInt TRealX::Set ( TReal32 aReal )

Gives this extended precision object a new value taken from a single precision floating point number.

Parameters

aReal The single precision floating point value.

(generated from Symbian Developer Library)

◆ Set() [4/5]

IMPORT_C TInt TRealX::Set ( TReal64 aReal )

Gives this extended precision object a new value taken from a double precision floating point number.

Parameters

aReal The double precision floating point value.

(generated from Symbian Developer Library)

◆ Set() [5/5]

IMPORT_C TInt TRealX::Set ( TUint aInt )

Gives this extended precision object a new value taken from an unsigned integer.

(generated from Symbian Developer Library)

◆ SetInfinite()

IMPORT_C void TRealX::SetInfinite ( TBool aNegative )

Sets the value of this extended precision object to infinity.

Parameters

aNegative ETrue, the value is a negative zero; EFalse, the value is a positive zero.

(generated from Symbian Developer Library)

◆ SetNaN()

IMPORT_C void TRealX::SetNaN ( )

Sets the value of this extended precision object to 'not a number'.

(generated from Symbian Developer Library)

◆ SetZero()

IMPORT_C void TRealX::SetZero ( TBool aNegative = EFalse )

Sets the value of this extended precision object to zero.

Parameters

aNegative ETrue, the value is a negative zero; EFalse, the value is a positive zero, this is the default.

(generated from Symbian Developer Library)

◆ Sub()

IMPORT_C TInt TRealX::Sub	(	TRealX &	aResult,
		const TRealX &	aVal
	)		const

Subtracts an extended precision value from this extended precision number.

Parameters

aResult	On return, a reference to an extended precision object containing the result of the operation.
aVal	The extended precision value to be subtracted.

(generated from Symbian Developer Library)

◆ SubEq()

IMPORT_C TInt TRealX::SubEq ( const TRealX & aVal )

Subtracts an extended precision value from this extended precision number.

Parameters

aVal	The extended precision value to be subtracted.

(generated from Symbian Developer Library)

Member Data Documentation

◆ iExp

TUint16 TRealX::iExp

Exponent: biased by 32767, iExp=0 => zero, +65535 => infinity or NaN.

Definition at line 494 of file e32math.h.

◆ iFlag

TUint8 TRealX::iFlag

Flags: 0 for exact, 1 for rounded down, 2 for rounded up.

Definition at line 489 of file e32math.h.

◆ iMantHi

TUint32 TRealX::iMantHi

Definition at line 479 of file e32math.h.

◆ iMantLo

TUint32 TRealX::iMantLo

The mantissa.

Definition at line 478 of file e32math.h.

◆ iSign

TInt8 TRealX::iSign

The sign: 0 for +, 1 for -.

Definition at line 484 of file e32math.h.

The documentation for this class was generated from the following files:

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ TRealXOrder

Constructor & Destructor Documentation

◆ TRealX() [1/7]

◆ TRealX() [2/7]

◆ TRealX() [3/7]

◆ TRealX() [4/7]

◆ TRealX() [5/7]

◆ TRealX() [6/7]

◆ TRealX() [7/7]

Member Function Documentation

◆ Add()

◆ AddEq()

◆ Compare()

◆ Div()

◆ DivEq()

◆ GetTReal() [1/2]

◆ GetTReal() [2/2]

◆ IsFinite()

◆ IsInfinite()

◆ IsNaN()

◆ IsZero()

◆ Mod()

◆ ModEq()

◆ Mult()

◆ MultEq()

◆ operator TInt()

◆ operator TInt64()

◆ operator TReal32()

◆ operator TReal64()

◆ operator TUint()

◆ operator!=()

◆ operator%()

◆ operator%=()

◆ operator*()

◆ operator*=()

◆ operator+() [1/2]

◆ operator+() [2/2]

◆ operator++() [1/2]

◆ operator++() [2/2]

◆ operator+=()

◆ operator-() [1/2]

◆ operator-() [2/2]

◆ operator--() [1/2]

◆ operator--() [2/2]

◆ operator-=()

◆ operator/()

◆ operator/=()

◆ operator<()

◆ operator<=()

◆ operator=() [1/5]

◆ operator=() [2/5]

◆ operator=() [3/5]

◆ operator=() [4/5]

◆ operator=() [5/5]

◆ operator==()

◆ operator>()

◆ operator>=()

◆ Set() [1/5]

◆ Set() [2/5]

◆ Set() [3/5]

◆ Set() [4/5]

◆ Set() [5/5]

◆ SetInfinite()

◆ SetNaN()

◆ SetZero()

◆ Sub()

◆ SubEq()

Member Data Documentation

◆ iExp

◆ iFlag

◆ iMantHi

◆ iMantLo

◆ iSign